Mildewproof and waterproof coating for building external wall and production method thereof
A technology for building exterior walls and waterproof coatings, used in antifouling/underwater coatings, coatings, and biocide-containing paints, etc. Material performance decline and other problems, to achieve the effect of strong fungicidal ability, good chemical cross-linking effect, and improved waterproof and mildew resistance.
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Embodiment 1
[0040] First, 40 parts of emulsion (a mixture of A-102 silicone acrylic emulsion and A-99 pure acrylic emulsion, the ratio of the two parts by weight is 1.5:1), 1 part of N-methylol acrylamide, 6 parts of fumed silica, 4 parts of water, 1 part of titanate coupling agent (monoalkoxypyrophosphate titanate coupling agent), 6 parts of additives (1 part of cellulose acetate butyrate, 1 part hydroxyethyl cellulose, 4 parts 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate), 7 parts n-butyl acetate, 5 parts fungicide octyl-isothiazole Kelinone, 5 parts of modified nano-calcium carbonates, prepare materials.
[0041] The preparation method of the modified nano-calcium carbonate is as follows: dehydrate and dry the nano-calcium carbonate powder at 115-120°C, then add it to a high-speed mixer, stir and heat up, stop heating at 90°C, and add 2.0% of the mass of nano-calcium carbonate The chelating titanate coupling agent KR-201 was modified at 90°C for 10 minutes; then 2.0% of stearic aci...
Embodiment 2
[0047] First, 45 parts of emulsion (a mixture of A-102 silicone acrylic emulsion and A-99 pure acrylic emulsion, the ratio of the two parts by weight is 1.5:1), 1.5 parts of N-methylol acrylamide, 7 parts of fumed silica, 5 parts of water, 1.5 parts of titanate coupling agent (monoalkoxy pyrophosphate type titanate coupling agent), 9 parts of auxiliary agent (2 parts of cellulose acetate butyrate, 2 parts hydroxyethylcellulose, 5 parts 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate), 8 parts n-butyl acetate, 7 parts fungicide 5-chloro-2 -Methyl-4-isothiazolin-3-ketone, 8 parts of modified nanometer calcium carbonate, prepare materials.
[0048] The preparation method of the modified nano-calcium carbonate is as follows: dehydrate and dry the nano-calcium carbonate powder at 115-120°C, then add it to a high-speed mixer, stir and heat up, stop heating at 90°C, and add 2.0% of the mass of nano-calcium carbonate The chelating titanate coupling agent KR-201 was modified at 90°C f...
Embodiment 3
[0054] First, 50 parts of emulsion (a mixture of A-102 silicone acrylic emulsion and A-99 pure acrylic emulsion, the ratio of the two parts by weight is 1.5:1), 2 parts of N-methylol acrylamide, 9 parts of fumed silica, 6 parts of water, 2 parts of titanate coupling agent (monoalkoxy pyrophosphate type titanate coupling agent), 12 parts of auxiliary agent (3 parts of cellulose acetate butyrate, 3 parts hydroxyethyl cellulose, 6 parts of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate), 9 parts of n-butyl acetate, 8 parts of fungicide octyl-isothiazole Kelinone, 10 parts of modified nano-calcium carbonates, prepare materials.
[0055]The preparation method of the modified nano-calcium carbonate is as follows: dehydrate and dry the nano-calcium carbonate powder at 115-120°C, then add it to a high-speed mixer, stir and heat up, stop heating at 90°C, and add 2.0% of the mass of nano-calcium carbonate The chelating titanate coupling agent KR-201 was modified at 90°C for 10 minutes...
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